package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.commom.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDto;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
public class SetmealController {
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private CategoryService categoryService;

    /**
     * 保存套餐
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("保存的套餐为:{}",setmealDto);
        setmealService.saveWithDish(setmealDto);
        return  R.success("新增套餐成功!");
    }

    /**
     * 套餐分页
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        //分页构造器
        Page<Setmeal> pageInfo = new Page<>(page, pageSize);
        //SetmealDto对象
        Page<SetmealDto> dtoPage = new Page<>();
        //条件查询器
        LambdaQueryWrapper<Setmeal> lqw = new LambdaQueryWrapper<>();
        //模糊查询
        lqw.like(name != null, Setmeal::getName, name);
        //更新时间降序排序
        lqw.orderByDesc(Setmeal::getUpdateTime);
          setmealService.page(pageInfo,lqw);
        //对象的拷贝
        BeanUtils.copyProperties(pageInfo, dtoPage,  "records");
        List<Setmeal> records = pageInfo.getRecords();


        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            //对象拷贝的records
         BeanUtils.copyProperties(item,setmealDto);
            //根据id查询
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            //判断
            if (category != null) {
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    /**
     * 删除套餐
     * @param ids
     * @return
     */
   @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("接收到删除id请求:{}",ids);
        setmealService.removeWithDish(ids);
        return  R.success("删除成功!");
    }

    /**
     * 根据分类id查询套餐
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> lqw=new LambdaQueryWrapper<>();
        lqw.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
        lqw.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
        lqw.orderByDesc(Setmeal::getUpdateTime);
        List<Setmeal> list = setmealService.list(lqw);
        return R.success(list);
    }


}    